Microsoft revealed today that it is expanding the retail availability for its Surface RT tablets. Surface RT will be made available at "additional retailers" from mid-December in the US and Australia as part of "increased production" by the software giant. Microsoft is also transitioning some holiday pop-up stores into permanent retail outlets. Microsoft has not yet shared which stores will be made permanent or a list of the new retailers.

The confirmation follows rumors of Microsoft's plans to move up its retail distribution during the holiday shopping season. Microsoft had originally planned to extend retail availability in January, but a lack of distribution seems to have pushed Microsoft's plans forwards. Surface tablets have been spotted in Verizon retail stores previously and we've reached out to Microsoft to confirm the exact retailers who will stock Surface RT.

Update: Staples says it will carry Microsoft's Surface RT tablet at all of its retail locations from December 12th.

Update 2: Best Buy has also confirmed a December 12th launch for the Surface, though that only applies to the online store. The tablet will come to all retail locations and select Best Buy Mobile stores from Sunday, December 16th.